A572 steel muaj nyob rau hauv tsib qib sib txawv: 42, 50, 55, 60, thiab 65. Txhua qib qhia tau hais tias lub zog tawm los ntawm lub zog siab, qis alloy steel. Nws ntau yam khoom muaj txiaj ntsig ua rau nws yog ib qho tseem ceeb rau kev tsim kho.
Lub zog, Weldability, thiab Machinability
Ib qho ntawm feem ntau siv A572 qib yog A572-50. Qib no muaj lub zog tensile kawg ntawm 65,300 psi thiab lub zog tensile siab ntawm 50, 000 psi. Nws yog siv nyob rau hauv ib tug dav array ntawm structural daim ntaub ntawv, ib co ntawm cov uas muaj xws li vaj tse, kis tau tus yees, txuas hniav, siv cov khoom siv, thiab tsheb thav duab.
Ntxiv nrog rau nws lub zog, A572 tswj tau zoo heev ductility, tso cai rau nws yuav tsum tau machined los ntawm ntau yam txuj ci thiab yooj yim welded. Nws tau raug ntsuas raws li muaj kev ua tau zoo ntawm 66% ntawm B1112 steel, nrog qhov nruab nrab txiav nrawm muaj txog 110 ft / min. Cov hlau cov khoom kuj txhawb kev weldability uas tuaj yeem tsim cov pob qij txha muaj zog, zoo.
Cov khoom siv steel hlau muaj li ntawm A572 steel muaj xws li:
Wide Flange Beams
I-Beam
Lub kaum sab xis
Structural Steel Channels
Hlau Phaj
Nws yog ib qho tseem ceeb rau cov ntawv thov uas yuav tsum tau muaj zog-rau-qhov hnyav piv. Thaum piv rau carbon steel, A572 tuaj yeem ua tau raws li qhov yuav tsum tau muaj zog tib yam nrog cov khoom me me ntawm cov hlau, muab lub zog zoo rau kev ua siab ntev nrog cov qib qis.
Kev sib xyaw
Thaum lub zog theem ntawm A572 tuaj yeem sib txawv me ntsis nyob ntawm qhov muaj pes tsawg leeg ntawm cov khoom siv, feem ntau muaj pes tsawg leeg yog tawg raws li hauv qab no:
98% hlau
{{0}}.23% - 0.209% Carbon
1.35% Manganese cov ntsiab lus
0.040% Phosphorous
0.40% Silicon
0.050% Sulfur
